/Engine/Plugins/Runtime/RigVM/Source/RigVMEditor/Public/RigVMEditorModule.h
IHasToolBarExtensibilityinterface
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FExtensibilityManager](API\Editor\UnrealEd\Toolkits\FExtensibilityManager) > GetToolBarExtensibilityManager()